<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="/js/index.js"></script>
    <script src="/js/jquery-3.3.1.min.js"></script>
</head>
<body>
<input id="test" name="sdfs" value="asdfasd"/>
<button onclick="testClic()"/>
fsdfadfasdfa
</body>
</html>